Gland-lock and swab.



No; 891,910. PATENTED JUNE 30, 1908.

G. CHRISTBNSON.

GLAND LOCK AND SWABa APPLICATION FILED 00T.14. 1907.

PLIJ

'5 J J 2 j A amoewkoz Witnesses 5902:94 [if :48}??? dfljfl WW rus NORRISPs'rzns ca, WASHINGTON, a. c.

GEORGE OHRISIENSON, OF NEVADA, MISSOURI.

GLAND-LOCK AND SWAB.

Specification of Letters Patent.

Patented June 30, 1908.

Application filed October 14, 1907. Serial No. 397,445.

T 0 all whom it may concern:

Be it known that I, GEORGE CHRISTEN- soN, a citizen of the UnitedStates, residing at Nevada, in the county of Vernon and State ofMissouri, have invented certain new and useful Improvements inGland-Locks and Swabs; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to devices designed for use upon pumping machines,air compressors, and the like, for securing the packing-box nuts inposition and for clean ing the moving piston rod.

The object of my invention is to provide a device of this characterwhich will prove efficient, durable, easy to adjust and which may beapplied to existing machines without appreciable change.

YVith this and other objects in view, the invention consists of certainnovel features of construction, combination and arrangement of parts, aswill be more fully described and particularly pointed out in theappended claims.

In the accompanying drawings is shown an embodiment of my invention.Like characters being used to indicate similar parts in the differentviews.

Figure 1 is a side view, showing the device mounted between contiguouscylinder heads of a pump, of which the dotted lines show outlines. Fig.2 is a sectional view substantially along the line aa of Fig. 1; whilein Fig. 3 is showna longitudinal section of the supporting rod and theparts immediately carried thereby.

The device consists of a screw threaded rod, 1, bearing upon one of itsends a nut, 2, and upon the other end a sleeve, 3. The nut and sleeveare each provided with a set screw for the purpose of fixedly securingthem upon the rod. Mounted upon the body of the rod is a spiral spring,4, its ends bearing against sleeves, 55, designed to slide upon the rodand having flange and socket engagement upon their outer ends,respectively, with the nut, 2, and sleeve, 3. Fixedly secured to each ofthe sleeve members, 5 and 5, is a spring arm 66. A rigid metallic bar,7, connects the outer end of the spring arms, 6 -6, being welded orother- Wise secured thereto upon one of its edges and intermediate itsend. These parts are so connected that the bar, 7, shall lie in a planeparallel with the axis of the rod, 1.

A portion of the bar, 7, approximately midway between its ends issuitably shaped to form a bearing surface for a pair of spring arms, SS.These arms are formed from a strip of spring metal, bent at its centralpoint to form a bearing sleeve from which its arms curve outwardly, withrespect to each other, then inwardly. Candlewick, or other textilematerial, is to be wound. upon each of these arms which, in use, graspthe exposed portion of the piston rod, 10, and. remove grit therefrom.arms S8 which bears upon the bar, 7, is mounted a handle or key, 9, bywhich they may be removed from engagement with the piston rod.

The bar, 7, bears at its ends in one of the slots of each of thepacking-box nuts, 11-11 serving to lock the same against displacement.

\Vhen it is desired to mount the device, a bolt in either of thecontiguous cylinder heads, A or B, is selected, preferably one near theupper portion of the cylinder (12 in the drawing, for example), asuitably screw threaded bore produced in its outer end, and one end ofthe rod, 1, secured therein. By manipulation of the nut, 2, upon theother end of. the rod, 1, a rigid support is secured for that end,either against a bolt-head, as shown, or against the cylinder head. Thebar, 7, is now brought into engagement with convenient slots of thealincd packing-box nuts, and the adjustment is complete. The bar orfoot, 7 may be removed from engagement with the nuts by rotating it uponthe rod, 1, through the arms, 6-6, such rotation being resisted by theflanges upon the sleeves, 55, pressed into sockets in nuts, 2, andsleeve, 3, by the spring, 4.

Having thus described the nature of my invention, what I claim as newand desire to secure by Letters-Patent, is:

1. In combination, a pair of contiguous cylinder heads, a piston rodadapted to reciprocate therebetween, stuliing boxes for said piston rod,flanged nuts on said stuffing box having notches in the ilanges thereof,a supporting rod passing through a llange of the head of one of saidcylinders and positioned parallel to said piston rod, a sleeve having aradially extending notch and mounted on the inner end of said supportingrod, a collar mounted on the outer end of Upon that portion of the saidsupporting rod, set screws to hold said collar and sleeve in position,inner sleeves rotatably mounted on said supporting rod between and incontact with said notched sleeve and said collar, a spiral spring onsaid supporting rod for holding said inner sleeves in normal position,arms carried by said inner sleeves, a plate carried by said arms andnormally engaging the notches of said flanged nuts, and a projection onone of said inner sleeves fitting the notch of said notched sleeve.

2. In combination, a pair of nuts screwed onto a supporting structure, aconnecting rod passing through said nuts, a supporting rod fastened tosaid structure and disposed away from but parallel to said connectingrod, swmgmg means mounted on sald sup-' porting rod, and means to clampsaid connecting rod to hold said swinging means in connection with saidnuts. i

In testimony whereof I have hereunto set my hand in presence of twosubscribing wit-

